Sony XR-H572A Service Manual

XR-H572A/H572W/H572WT/
SERVICE MANUAL
SUPPLEMENT-1
File this supplement with the service manual.
Subject : Change of Main Board
When performing service and inspection, check the part number
of the main board.
– MAIN BOARD (SIDE A) –
H573A/H573W
(ECN-CSB00374)
Main board Part No.
Former :1-671-224-11
New :1-674-279-11
SECTION 1
DIAGRAMS
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS
AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
• For printed wiring boards.
• X : parts extracted from the component side.
• : Through hole.
®
• : internal component.
¢
• b : Pattern from the side which enables seeing.
: Chip transistor of abbreviation (E, C, B) BCE
• (( )) : Page of service manual.
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B) pattern face are indicated.
Parts face side: Parts on the parts face side seen from the
(Side A) parts face are indicated.
• For schematic diagrams.
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and
1 / W or less unless otherwise
4
specified.
• % : indicates tolerance.
• : internal component.
¢
• C : panel designation.
• U : B+ Line.
• H : adjustment for repair.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from ACC and BATT cords.
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
( ) : AM
< > : PB
∗
: Impossible to measure.
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Signal path.
F
: FM
f : AM
E : PB
• (( )) : Page of service manual.
<< >> : Page of supplement-1.
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